Spring-hinge.



'No. 637,218. Patented Nov. l4, I899. A. L. STUMP &. F. BHUCKER.

SPRING HINGE.

, (Application filed June 2 Shoots-Shoat I,

(No Modal.)

No. 637,2l8. Patented Nov. 14', I899.

A. L. STUMP & F. BBUCKER.

SPRING HINGE.

(Applicntion filed June 12, 1899.

{Shank-Shut 2,

(No Model.)

Jfwemws jrle/maw L *S/IZZUIIF UNITED STATES PATENT rFIcE.

ABRAHAM L. STUMP AND FRANCIS BRUOKER, OF SHELBY, OHIO, ASSIGNORS OF ONE-HALF TO JOSEPH A. SELTZER AND HARRY W. STEEL, OF SAME PLACE.

. SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 637,218, dated November 14, 1899.

Application filed June 12, 1899. Serial No. 720,279. (No model.)

To 00% whom it may concern.-

Be it known that we, ABRAHAM L. STUMP and FRANCIS BRUOKER, citizens of the United States, residing at Shelby, Ohio, have invented certain new and useful Improvements in Double-Acting Spring-Hinges, of which the following is a specification.

Our invention relates to improvements in spring-hinges for doors which are designed to swing in both directions, generally known as double-acting spring-hinges. v

The objects of the invention are to provide a simple and efficient construction which will permit of the door being readily hung and taken down, in which the spring may be easily tightened, so as to place any desired,

tension upon the door, in which all strain of the spring is taken from the screws and all liability of the sagging of the door is removed in case the springs are not kept tight, and finally we aimto provide a construction in which no unsightly springs appear, the parts being all concealed by the casing or plates of the hinge.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a central vertical section through the hinge and a sufficient portion of the door jamb or casing to illustrate the action of the parts. Fig. 2 is a transverse sectional view. Fig. 3 is a side elevation. Fig. 4 is a face View of the portion carried by the door. Fig. 5 is a face view of the plate carried by the frame or casing, part being sectioned. Fig. 6 is a detail view. Fig. 7 is a detail perspective view of the hinge, parts being removed.

In the drawings, A represents the door frame or casing, and B the door. To the door-frame a plate a is secured by means of screws a, and this plate carries a barrel extension d on its rear face, which is mortised into the door frame or casing, and a housing or extension hon its front face, which forms an extension of the barrel. A plate b is socured to the door by suitable screws and is provided with a transversely open or recessed portion 1), mortised into the door and which is designed to receive the housing or extension h and turn thereon. In the housing h a lateral opening or recess is located, leading inward from the edge to the center, which is partially closed by a tongue or projection c from the plate 0, secured to the side of the housing by screws 0, leaving only a round opening in the center, forming a bearing for a pin g, which is carried by the upper wall of the recessed portion 1) and which forms the pivot upon which the door swings. It

will be seen that after the plate a has been secured to the door-frame and the plate I) to the door, by removing the plate 0 the door may be hung by simply sliding the pin into the recess, and the replacing of the plate 0 will hold it effectively in place.

The barrel d has a guideway din its lower portion, in which a slide 6 works, which is provided with an upwardly-turned rear end, while its forward end is provided with a downwardly-turned rib or flange, which overlaps a corresponding rib or flange fon the lower wall of the recessed port-ion b. A spring 'i is inserted within the barrel, with its rear end against the upwardly-turned end of the slide, and after the spring has been inserted the opening in the end of the casing or extension h is closed by a plate h, preferably threaded into the open end thereof. In order to place tension on the spring, we provide a screw-bolt 70, having a contracted head projecting through an opening in the plate h, the flange on said head bearing against the inner face of the plate and holding it against outward movement. A nut Z, threaded on the bolt and held against turning by a contact with the end of the spring, serves to place any desired degree of .tension on the spring when the bolt is turned by a suitable tool.

It will be observed that by the construction above described the door may be hung before the spring is put in place or any tension applied thereto. After it has been hung in the man ner hereinbefore described it is turned or swung at right angles to the door-frame, which exposes the end of the casing h, and the plate h being removed the spring may be inserted, and after the bolt and plate have been put in place any desired tension may be placed upon the spring by simply turning the bolt with a suitable tool,such as a screwdriver,

where the head of the bolt is slotted for that purpose.

The action of the springhinge will be readily apparent, for it will be observed that as the door is swung in either direction the corresponding movement given to either end of the ribf will draw the slide outward, thus compressing the spring and storing in it the power which effects the return of the door to initial position.

Having thus described our invention, what we claim is 1. A spring-hinge comprising a plate having a transverse socket, a second plate having a hollow part projecting into said socket, a pivotal connection between said parts, and a spring within said hollow part exerting tension on said parts, substantially as described.

2. A spring-hinge comprising a plate having a.transverse socket, a second plate having a hollow part projecting into said socket, a pivotal connection between said parts, a slide within said hollow part actuated by the relative movement of the plates, and a spring exerting tension on said slide, substantially as described.

3. A spring-hinge comprising a plate having a transverse socket, a second plate having a hollow part projecting into said socket, a pivotal connection between said plates, a slide within said hollow part actuated by the relative movement of the plates, and a spring exerting tension on said slide, and means for varying the tension on said spring, substantially as described.

4. A spring-hinge comprising a plate having a transverse socket, a second plate having a hollow part projectinginto said socket, a pivot-pin carried by said first-named plate entering a slot in the wall of said hollow part,

means for closing said slot to hold the pivotpin in position, and a spring within said hollow part exerting tension on said plates substantially as described.

5. A spring-hinge comprising a plate having a socket, a second plate having a hollow portion pivoted within said socket, a slide within said hollow portion having a flanged outer end, an abutment carried by the first plate coacting with said flange to move the slide, a spring having its rear end adapted to exert inward pressure on the rear end of said slide, a screw-bolt rotatably mounted in the front end of said hollow portion, and a nut threaded on said bolt and designed to vary the tension of the spring on the adjustment of the bolt, substantially as described.

6. A spring-hinge comprising a plate-having a socket, a second plate having a hollow portion pivoted within said socket, a slide within said hollow portion having a flanged outer end, an abutment carried by the first plate coacting with said flange to move the slide, a spring having its rear end adapted to exert inward pressureon the rear end of said slide, a removable plate closing an opening in the front end of said hollow portion, a screwbolt having a part projecting through an opening in said plate and having a flange bearing against the inner face of said plate, and a nut threaded on said bolt and bearing against the front end of the spring, substantially as described.

In testimony whereof we afitix our signatures in presence of two witnesses.

ABRAHAM L. STUMP. FRANCIS BRUOKER. \Vitnesses:

B. FRANK LONG, EFFIE SIGLER. 

